windows form 视频显示 整理版vs2008下编译通过

   //显示视频时

 m_Frame=cvQueryFrame(m_Video);

if (!m_Frame)
{
MessageBox::Show("can not query image!!!");
}
pictureBox1->Image = gcnew System::Drawing::Bitmap(m_Frame->width,m_Frame->height,m_Frame->widthStep,
System::Drawing::Imaging::PixelFormat::Format24bppRgb,(System::IntPtr) m_Frame->imageData);

pictureBox1->Refresh();//this is very important

 //释放资源时

       pin_ptr<CvCapture*> p;
       p = &m_Video;
       cvReleaseCapture( p ); //replace cvReleaseCapture(&m_Video) when the sentence is inside a class.